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-5x-7(-4x-6)=-142
We simplify the equation to the form, which is simple to understand
-5x-7(-4x-6)=-142
Reorder the terms in parentheses
-5x+(+28x+42)=-142
Remove unnecessary parentheses
-5x+28x+42=-142
We move all terms containing x to the left and all other terms to the right.
-5x+28x=-142-42
We simplify left and right side of the equation.
+23x=-184
We divide both sides of the equation by 23 to get x.
x=-8
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